From sub- +‎ rule. <span class="searchmatch">subrule</span> (plural <span class="searchmatch">subrules</span>) A narrow rule which defines the specific meaning of a broader rule 2009 January 8, Michelle Slatalla, “Two...
<span class="searchmatch">subrules</span> plural of <span class="searchmatch">subrule</span>...
From sub- +‎ corollary. subcorollary (plural subcorollaries) A corollary of a corollary (in a chain of logical steps). <span class="searchmatch">subrule</span> subtheme...
From sub- +‎ regulation. subregulation (plural subregulations) A regulation forming part of a greater regulation. Synonym: <span class="searchmatch">subrule</span>...
rules (play cannot begin before crossing East Blithedale Avenue), then <span class="searchmatch">subrules</span> ("crossing" means reaching the always arguable halfway point of the avenue)...